UN/ECE - United Nations Economic Commission for EuropeUN/ECE provides a regional forum for governments to develop conventions, norms and standards with the aim of harmonizing action and facilitating exchanges between member States through the elimination of obstacles and the simplification of proceduresSwitzerland

ShipShape International LimitedThe ShipShape Management Team comprises in total 125 years experience covering every discipline required to run a successful cruise or ferry business from sales and marketing to operations.United Kingdom

Australian Maritime Safety AuthorityThe Australian Maritime Safety Authority is the country's federal government safety agency charged with the delivery of safety and other services to the Australian maritime industry.Australia

The Nova Scotia Ocean InitiativeNSOI is a membership organization designed as:
1. A Simple Entry Point To All Nova Scotia Ocean Related Technology.
2. A Catalyst To Partnering And Team Building To Get The Right Connections Quickly.
3. A Business NetworkCanada

Nitrogen Oxides Reducers

9/22/2008

The Wärtsilä NOR units are selective catalytic reduction (SCR) converters that will meet the stringent requirements of IMO Tier III emissions control regulations with regard to NOx reduction. The NOR units are able to reduce NOx emissions to a level of 1.5 g/kWh. IMO Tier III is expected to come into force in 2016. The Selective Catalytic Reduction (SCR) process reduces NOx emissions to harmless substances normally found in the air that we breathe.

The SCR product for Wärtsilä medium-speed engines is named Nitrogen Oxide Reducer (NOR). An SCR installation consists basically of a reactor, which is the core of the installation, an injection unit and a compact unit, where the urea solution is pumped and dosed for the desired NOX reduction. This compact unit is provided with dedicated control cabinet. As alternative, the urea solution can be fed with separated pumping unit and dosing unit, which are controlled by a separated control unit.

The new SCR product range caters for the needs of all four-stroke engines in Wärtsilä's portfolio and can be used for both newbuild and retrofits. The SCR control system is seamlessly integrated with the Wärtsilä engine control system and the units come with a completed prefabricated ancillary system offering the following features: